In a similar study on a cohort of 88 patients with NSCLC, the overall concordance of EGFR mutations varied depending on sampling time, with 88.2% and 64.7% concordance for time intervals of 0.8 months and >0.8 months between blood draw and tissue biopsy, respectively [112]. The gene discussed is EGFR; the disease is non-small cell lung carcinoma.